Stack cisco 2960X
I have 2 2960S and 2
2960X Cisco switch with a flexstack module which we would like to add. I want to stack them together, has anybody got tips with this? Thanks.
Hi,
From Cisco website, we get following article. Please refer to it and check if can help you.
Cisco
Catalyst 2960-S, 2960-X, and 2960-XR Stacking with FlexStack and FlexStack-Plus Technology: Description, Usage, and Best Practices
Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft
does not guarantee the accuracy of this information.
However, this issue seems to be more related to Cisco switch configurations. I suggest that you would contact
with Cisco support and confirm this issue. I believe we will get a better assistance there.
Hope this helps.
Best regards,
Justin Gu
Similar Messages
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Cisco 2960x - auto qos voip cisco-phone on access ports
After configuring "auto qos voip cisco-phone" on a stack of 2960x switches, we later noticed that after a power cycle (config was saved first) it went missing when doing a "show run" from the interface configs, on one of the switches (g1/0/1-48 had it applied, then after power cycle it didn't show). However, doing a "show auto qos interface" shows it is still applied to all interfaces g10/1-48.
I try to do "auto qos voip cisco-phone" again on g1/0/1-48, and it shows this:
SwitchStack01(config-if-range)#auto qos voip cisco-phone
AutoQoS Error: AutoQoS already configured
% Range command terminated because it failed on GigabitEthernet1/0/1
If I attempt to remove "auto qos voip cisco-phone", it shows this:
SwitchStack01(config-if-range)#no auto qos voip cisco-phone
AutoQoS Error: AutoQoS not configured
% Range command terminated because it failed on GigabitEthernet1/0/1
When I do a "show run", it is no longer displayed for the first switch of the stack.So is it still applied to the interfaces or not? Is this a bug? Has anyone else experienced this? This has happened to at least a couple stacks of 2960x's we have.
Thanks!It appears to be a bug in the code. Open a TAC ticket with Cisco and send them the output and the IOS version you are using so they can help you resolve the issue. Most likely, they recommend an upgrade.
HTH -
pls let me know cisco 2960X family switches in india which power cords is compatible?16A or 10A
This is the compatible power card in india
CAB-IND-10A
10A Power cable for India
Regards
Irfan -
Cisco 4500X VSS & MEC Cisco 2960X
Hi
I have Cisco 4500x VSS connect to MEC Cisco 2960X using LACP.
I encountered a problem about C2960X
Integration reason
1.C2960X Ten 1/0/2 link flapping interface error-disable . I am disable interface then enable interface , switch show SFP not Present .
Te1/0/2 notconnect 1 full 10G Not Present. (SPF plug-in Correct)
2.use CLI reload C2960X , Ten 1/0/1 ,Ten 1/0/2 notconnect SPF Not Present. (SPF plug-in Correct)
error message :
Dec 18 12:40:25.250: %SYS-5-CONFIG_I: Configured from console by console
Dec 18 12:41:48.888: % ILET-1-AUTHENTICATION_FAIL: This Switch may not have been manufactured by Cisco or with Cisco's authorization. This product may contain software that was copied in violation of Cisco's license terms. If your use of this product is the cause of a support issue, Cisco may deny operation of the product, support under your warranty or under a Cisco technical support program such as Smartnet. Please contact Cisco's Technical Assistance Center for more information.
26F_guest_switch#show license
Index 1 Feature: lanlite
Period left: 0 minute 0 second
Index 2 Feature: lanbase
Period left: Life time
License Type: Permanent
License State: Active, In Use
License Priority: Medium
License Count: Non-Counted
3.C2960X power Cycle ,C2960X operation normal, ,but recurring problems every day.
I do not know where the problem , I have upgrade C2960X IOS but it had same problem.
Cisco 2960X IOS version: 15.2(3)E C2960X-UNIVERSALK9-M
Cisco 4500X IOS version: cat4500e-universalk9.SPA.03.05.00.E.152-1.E.bin
Thanks for your help,Hi Reza,
Thanks for your help
I can not confirm that because I have a few switch have the same problem.
C2960X 10G port 1 is connected to C4500X slot 1, Port 2 is connected to C4500X Slot2.
link flapping, On the switch port 2.
I need to do a more precise test to confirm the problem is C2960X or 4500VSS -
Got the console error on new cisco 2960x
Hi,
i have brand new Cisco 2960x ,running ios is c2960x-universalk9-mz.150-2.EX5
i have inserted two sfp (Glc-sx-mm)module with ether channel configuration
but got console error
hulc_sfp_iic_intf_read_eeprom sfp _index 2 yeti_iic_read_retry fail
i have running os is c2960x-universalk9-mz.150-2.EX5
Regards
sunil JadhavI tried connecting to iTunes and neither the PC nor iTunes recognizes the device. I went through all the troubleshooting on the Apple website for this issue and nothing worked. I've reinstalled iTunes, the driver, everything and still can't get either the PC or iTunes to recognize the phone. I don't know what else to do :-( any help or suggestions are highly appreciated!
I would hate to have lost all my info, especially contacts and calendar items since I have no idea what was backed up prior to the phone getting locked on this screen. I've been told that my only option is to go to the phone carrier and they will reset it for me, but that means it will wipe out all the info.
I hope someone has a fix other than that one. -
Ensure HA for servers on stacked Cisco 3750g Switches?
Please bear with me. I'm fairly new to the sys admin world. Though I have a grasp on Cisco Switch technology, the grasp is certainly not solid. I've been tasked by my IT director with finding a device-level redundancy plan for our critical systems. We have four stacked 3750g switches. How would I setup the technology so if the switch with the servers connected were to fail, the downtime would be minimized? Should I deploy a RPS2300? What about the supervisor engine? From what I understand, the supervisor engine is virtual when using stacked 3750s. Is server NIC teaming neceassary? Does the LACP protocol need to be considered? As you can see, I've got a lot of catching up to do. Ultimately, I need guidance so I'm not this plan in the wrong direction by confusing appropriate technologies.
Thanks in advance.Disclaimer
The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
Liability Disclaimer
In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
Posting
You've already correctly identified some methods for HA with 3750s.
As you note, the stack provides "supervisor" redundancy, i.e. if stack master fails, another stack member will take over. One thing to watch for, if your stack master is running IP Services, you'll want at least one other stack member to have that IOS installed (and licensed).
Regarding hosts, ideally if they support Etherchannel/Portchannel to the stack, you can have critical hosts connected to two different stack members, so if one path fails, connectivity isn't lost to the host. For hosts that don't support that, or are not critical, you might have some "spare" VLAN ports in other stack members. I.e. if a stack member fails, manually repatch such hosts to another stack member port. (If fact, ideally, you might have one additional stack member already in the stack, so for such single connected hosts, downtime is the time it takes to repatch [then you work about replacing the failed stack member].)
On the power issue, the RPS would allow usage of a secondary power circuit and it also covers, I believe, failure of a stack member's A/C power supply (those don't fail too often, and if it does on a 3750G, you might need to replace the whole unit[?]). However, the RPS doesn't handle loss of A/C power on both paths (and when it takes over, I also recall, you need to reload the stack to revert off it). So, you might also want to consider UPS too (if other parts of the network might still be operational). Depending how you implement UPS, you might not need an RPS, for example if each stack member had its own UPS and each UPS could be reconnected to another power line.
PS:
For additional stability, if not already running it, 12.2(55)SE8 is considered, by many, as being very stable. -
Cisco 2960X - power inline auto max 15400
Hello,
I have a new stack of five 2960X's and recently started to configure the stack, and found the "power inline auto max 15400" on my 3rd switch in the stack. I did a "show power inline" and confirmed it set the max to 15.4 instead of the default 30.0 found on the other switches in the stack. I (nor anyone else) has entered this command on any interfaces on this stack.
What would trigger this to appear if it was not manually entered? I noticed this on a single switch in another stack I was working on previously as well.
Thanks,
MattIf you do a show run all you will see the configuration on the port is :
power inline auto max 15400
power inline static max 15400
If you change it to
power inline auto max 30000
the
power inline static max 15400
will go away.
Not sure why some switches default on 15400 and others on 30000. -
Cisco 2960X LAN Base vs IP Base
We have few Catalyst 2960X with LAN Base, and all features, that you wrote are supported.
Hi,
I am trying to buy a Cisco switch and I have trouble defining if LAN Base supports these features :
IEEE 802.1x
Multiple Spanning Tree Protocol (MSTP)
IEEE 802.1AE MACsec on all down-link and up-link ports
IEEE 802.1s/w Rapid Spanning Tree Protocol (RSTP) and
IEEE 802.1p QoS
IEEE 802.1Q VLAN,
Could you please advise ?
Kind regards,
Kushtrim
This topic first appeared in the Spiceworks Community -
802.1x on Alcatel Lucent IPtouch 2048 with Cisco 2960X
HI All,
I got stuck in the middle of the solution where we need to connect Alcatel lucent IPtouch 2048 phone to cisco switch port and from phone PC is connected.
We are trying to bypass authentication for IP phones, we dont want to do MAB/Dot1x/WEB authentication for these phones. Only PC should get authenticated but we are unable to achieve it.
Configuration of switch is as below
aaa authentication login default local
aaa authentication dot1x default group radius
aaa authorization network default group radius
aaa session-id common
switch 1 provision ws-c2960x-48lps-l
vtp mode transparent
dot1x system-auth-control
spanning-tree mode pvst
spanning-tree extend system-id
network-policy profile 1
voice vlan 171
vlan internal allocation policy ascending
vlan 22
name mgmt
vlan 7
name data
vlan 11
name voice
lldp run
interface FastEthernet0
no ip address
shutdown
interface GigabitEthernet1/0/1
switchport trunk allowed vlan 22,7,11
switchport mode trunk
switchport nonegotiate
interface GigabitEthernet1/0/2
shutdown
interface GigabitEthernet1/0/3
switchport access vlan 7
switchport mode access
switchport voice vlan 11
authentication host-mode single-host
authentication priority dot1x mab
authentication port-control auto
authentication periodic
authentication timer reauthenticate 18800
dot1x pae authenticator
spanning-tree portfast
spanning-tree bpdufilter enable
spanning-tree guard root
radius-server host x.x.x.x key 7 070871481F4D1E1712131F
radius-server host y.y.y.y key 7 011456000A4F011D244D5A
radius-server host x.x.x.x auth-port 1812 acct-port 1813 key 7 0201545F5A420833494F1D
radius-server host y.y.y.y auth-port 1812 acct-port 1813 key 7 121E5513434F0B162F2A30
radius-server deadtime 10
radius-server key 7 03030B0F574B265E4B080D
radius-server vsa send authentication
Please help me to resolve the issue.Hi,
Did you find any solution?. Did you tried with the command switchport voice vlan?.
Regards,
Mauricio -
Switch stacking limitations?
Hi all, quick question.
I'm looking to stack Cisco 2960x switches in several locations. Would be doing them in stacks of 3. Is it possible to stack in this configuration?
48 port Poe
48 port Poe
24 port no Poe
Or does hardware need to be identical? They're going to be the same class switch (2960x)
When stacked we can use any port(s) on any of the 3 switches as if it was one big switch?
Thanks in advance!!! :)
Sent from Cisco Technical Support iPad AppWould be doing them in stacks of 3. Is it possible to stack in this configuration?
There is no problem with what you are planning to do.
Or does hardware need to be identical?
You can stack 2960X with 2960S. Because you can only stack up to four (4) 2960S, if you mix-stack 2960X and 2960S together, the most you can stack is four.
When stacked we can use any port(s) on any of the 3 switches as if it was one big switch?
Your understanding is correct. A stack is one big "logical" switch. -
2960X Stack Fails After reload Command
Did not find anything in Bug Tool or these forums for this so posting as a new question.
Environment is multiple stacks of 2960X -48FPD-L switches in different IDF's running IOS 15.0(2)EX5. They were installed new and configured by another party about one month ago. Current configuration is attached to this post.
Switch stack fails to rebuild/sync after CLI reload command via telnet session. IP stack appears to not initialize so no network connectivity comes up even though per the onsite staff the master switch system LED's are green and one of the uplinks is connected to that switch..
The system LED's of the other switches are amber.
Remedy for the time being is for someone onsite to power cycle all the switches in 20 second master reelection window.
Have not yet had opportunity to go onsite to console into one of the master switches to reload and monitor the process from that perspetive.
One telltale that makes me wonder about EX5 is the reload command as documented in the 15.0(2)EX Switch Manager command reference here:
http://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960x/software/15-0_2_EX/stack_manager/command_reference/b_stck_152ex_2960-x_cr/b_stck_152ex_2960-x_cr_chapter_01.html#wp3486313748
should prompt with,
"Proceed to reload the whole Stack? [confirm]"
but actually only prompts with,
"Proceed with reload? [confirm]"
as if the command was 'reload slot 1' instead of just 'reload'.
I have not found anything in the config missing/wrong as far as configuration of the stack is concerned other than priorities and ID's were all assigned automatically/default..
If EX5 is the issue I'm not keen on downgrading to EX3 because the uplinks are SFP-10G-LRM which had more issues with EX3 than with EX5.
Thanks in advance for your time.
JonHave you tried cold booting the switch. I know it is a horrible work around, but I ran circles around this problem on a switch I had upgraded (well- downgraded) from 15.2(3)E that was hitting this bug. Warm boots seemed to do nothing to clear the %ILET-1-AUTHENTICATION_FAIL: This switch may note have been manufactured by Cisco (so on so forth). Once I pulled the power cable from the switch and waited several seconds prior to reapplying power, the switch came up cleanly. Currently, Cisco has safe harbored 15.0(2a)EX5. Did you happen to catch which bootloader combos with 15.0(2a)EX5 seemed to have the most consistent problems with this bug? The campus I work at is currently in the process of rolling out about 120 of these switches and originally decided to stick with 15.0(2)EX5 until we hit an OIR with SFPs that TAC almost immediately acknowledged as a new development for that specific image. We as a group decided to try out 15.2(3)E and quickly found out that the bug still existed. By that point, TAC was aware of the problem and over the weekend (2 days time after opening the ticket on a Friday if I remember right), 15.0(2a)EX5 was released.
Here is a small sampling of the switches that we have rolled out and what their bootloader + running IOS is. Note: There are a few "stable" cases running 15.2(3)E, but they will be rolled back during maintenance windows in the next few weeks. Everything that has been deployed since 15.0(2a)EX5 has been available has been running without issue on that IOS. I don't know how useful this data is, but I can continue to build a list, though it looks like every switch that I have that is running 15.0(2)EX5 from the factory that is getting upgraded to 15.0(2a)EX5 has the 15.2(2r)E1 bootloader, with a few cases with the 15.0(2r)EX3 bootloader.
Does anyone have information on when an IOS upgrade will trigger a bootloader upgrade? One thing I can't put a finger on right now is that during the last few rack/stack/configs of new stacks I have noticed that some of the switches running 15.0(2)EX5 from the factory that are being upgraded to 15.0(2a)EX5 are receiving a bootloader upgrade while the vast majority are not. -
2960X stack with 3650G question
Hello all,
Please see attached file first.
We have two existing Cisco 3650G with root/secondary bridge for resilience, now we want to add two Cisco 2960X with stack and for two server resilience with LACP, is it possible to do that ?
ThanksDisclaimer
The Author of this posting offers the information contained within this posting without consideration and with the reader's understanding that there's no implied or expressed suitability or fitness for any purpose. Information provided is for informational purposes only and should not be construed as rendering professional advice of any kind. Usage of this posting's information is solely at reader's own risk.
Liability Disclaimer
In no event shall Author be liable for any damages whatsoever (including, without limitation, damages for loss of use, data or profit) arising out of the use or inability to use the posting's information even if Author has been advised of the possibility of such damage.
Posting
The link between the secondary 3650G and your 2960X stack should block. -
Cisco 2960-X stacking question
Hi all,
We're planning buy 6 set of Cisco 2960-X with stacking with existing two firewall with HA function (please see attached diagram), if firewall 01 down will auto failover to firewall 02, is this network design good ?
Please some expert give us suggestion.
Thanks1. Do 2960-X support 6 member stacking ?
2960X support a stack size of 8, however, you need to be careful. The stacking speed of the 2960X is 20 Gbps. So you need to know if stacking up 8 is beneficial or not.
2. Do 2960-X support Bladeswitch stack cable ?
No. The stacking cable for the 2960S/X/XR are specific only for this models.
3. I think need buy stack module, right ?
Stacking modules and stacking cables. -
Hi all,
I am getting confused in understanding 2960x stacking
1) What is meant by a ring ? i mean if i connect 2 switches together with a single stack cable, will that be a ring ? or half ring ?
2) How 80 gbps stacking bandwidth is calculated ?Under the product at Cisco.com there is a paper on stacking:
Cisco Catalyst 2960-S, 2960-X, and 2960-XR Stacking with FlexStack and FlexStack-Plus Technology: Description, Usage, and Best Practices
http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps12995/white_paper_c11-728327.html
A single FlexStack connection between two 2960 stack members is a full-duplex 10Gbps connection. A single FlexStack-Plus connection between two 2960-X members is full-duplex 20Gbps. Each Cisco Catalyst 2960-S and 2960-X and 2960-XR member supports two FlexStack connections, which doubles the line rate. Each FlexStack member can simultaneously send and receive Ethernet traffic over both stack links at line rate, effectively giving 40Gbps of stack bandwidth per 2960-X member and 20Gbs of stack bandwidth per 2960-S member. When two or more 2960-X members are stacked together, the effective stack bandwidth is 80Gpbs because each member is capable of sending and receiving 40Gbps simultaneously. Same for 2960-S, the effective stack bandwidth is 40Gbps because multiple members are sending and receiving 20Gbps simultaneously. (See Table 1.)
Table 1. Comparison of FlexStack-Plus, FlexStack and StackWise-480
Stacking Item
C2960-X
C2960-XR
C2960-S
3850
Bidirectional stack bandwidth
80Gbps
80Gbps
40Gbps
480Gbps
Hot-swappable stack module
Yes
Yes
Yes
No (built-in)
Max stack members
8
8
4
9
Supports FlexStack
Yes
No
Yes
No
Supports FlexStack-Plus
Yes
Yes
No
No
So because each cable can send 20 Gbps in each direction that is 20*2*2 = 80 Gbps in total. Marketing speak, I know
FlexStack Cabling
Special cables are used to connect Cisco Catalyst 2960 Series Switches together in a stack. These special FlexStack cables can only be used to stack Cisco Catalyst 2960 switches with other Cisco Catalyst 2960 switches that support FlexStack. Figure 4 shows a picture of two FlexStack cables connected to a fully inserted FlexStack module. Notice how the tabs on the cables are on opposite sides of each other. The FlexStack cables are keyed as well. Besides the tabs needing to be away from each other, the keying of the metal portion of the connector prevents the cable from being connected incorrectly.
Figure 4. FlexStack Module with Cables
When each member in the stack has two operational FlexStack links, then the stack is operating in a fully redundant mode. The dual FlexStack connections from each member to two other members are what provide the redundancy. Should any single FlexStack connection break or cease to operate, then the switches in the stack will use the remaining FlexStack connection that is provided.
Deployment Topologies
Figure 5 shows a three-member stack with full bandwidth and with redundant FlexStack connections.
Figure 5. Fully Redundant Three-Member Stack
When one FlexStack link is not present, the stack still functions. Figure 6 shows a stack with incomplete FlexStack cabling. In Figure 6, all data traffic passes through the middle member. This stack is operating in a nonredundant mode. This stack provides only half of the possible bandwidth between members and does not have redundant connections. Only the middle member has full stack bandwidth. The top and bottom members are operating at half the fully redundant stack bandwidth. The fully redundant stack bandwidth for 2960-X and 2960-XR is 40Gbps per member. The fully redundant stack bandwidth for 2960-S is 20Gbps per member.
Figure 6. Nonredundant Three-Member Stack
As you can see in the picture above there can only be 20 Gbps per direction sent because there is one cable missing to complete the ring. The middle switch is also a single point of failure.
Daniel Dib
CCIE #37149
Please rate helpful posts. -
2960X Switch Stack Master Switch all ports only link in Orange
I have 2 Cisco 2960X-48FPD-L switches running the latest version 15.0(2)EX5 software in a stack using the flex stack modules and 2 stacking cables between them.
The problem I am having is that even though I can manage the entire stack without issues the master switch for some reason will not let me link any devices of SFP's fully in. If I plug any device or fiber link in the show interface shows link and line protocol up but the ports only link in orange. I can see the connected devices via a show CDP neighbor command but cannot connect to them and if I do a show spanning-tree it says I have no spanning tree instances.
The second switch (non master) all ports link in just fine green and I can connect to it from the rest of my network via a fiber link on the SFP port. A show spanning-tree also shows the correct information for the spanning tree instance for the second switch.
Has anyone run into this and if so is there an easy solution?
JimUnfortunately removing the "cluster enable Switch-2960X-Cluster 0" configuration did not fix my issue. However I have found the following while troubleshooting that may be useful.
1. The problem seems to exist only on whichever switch is designated the master switch, connections to the member switch work fine.
2. If I switch the priority such that on a reboot the switches swap roles (Master to Member and vice versa) the ports that were linking in green, now link in orange and stop passing traffic and the ports that were linking in orange now link in green and start passing traffic. (Simply, the switch that is master will not link any ports in green only the switch designated as master).
3. Strangely the ports that link in orange show interface and line protocol up and I can see devices such as IP Phones and other switches with a show CDP neighbor and a show CDP neighbor detail. However they can't receive an ip address from the DHCP server and can't pass high level traffic.
4. The switch ports that are linked in only orange do not show up in the output of a "Show Spanning-Tree" command.
What do you think? This is really stumping me.
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